//主類
package?package1;
import?java.util.Scanner;
public?class?Main?{
	Scanner?in?=?new?Scanner(System.in);
	Order?o;
	//主菜單
	public?int?mainMenu(){
		System.out.println("歡迎使用大大租車系統(tǒng)！");
		if(o?==?null){
			System.out.println("檢測到尚未創(chuàng)建賬單，現(xiàn)在為您創(chuàng)建賬單");
			o?=?new?Order(in);
		}
		System.out.println("1.創(chuàng)建新的訂單");
		System.out.println("2.修改已有訂單");
		System.out.println("3.查看訂單詳情");
		System.out.println("其他鍵退出系統(tǒng)！");
		int?todo=in.nextInt();
		return?todo;
	}?
	public?static?void?main(String[]?args)?{
		Main?m?=?new?Main();
		while(true){
			int?dowhat?=?m.mainMenu();
			if?(dowhat?==?1){
				?m.o=?new?Order(m.in);
			}
			else?if(dowhat?==?2){
				m.o.addVehicle(m.in);
			}else?if(dowhat?==?3)
				m.o.show();
			else
				break;
		}	
	}
}
//車類
package?package1;
public?abstract?class?Vehicle?{
	public?int?price;
	public?String?type;
	public?int?mount;
	//返回類型
	public?String?getType(){
		return?type;
	}
	//返回價格
	public?int?getPrice(){
		return?price;
	}
}
//卡車類
package?package1;
public?class?Truck?extends?Vehicle{
	private?int?loadWeight;
	//初始化卡車
	public?Truck(String?type){
		this.type=type;
		if(type?==?"輕型卡車"){
			this.loadWeight?=?5;
			this.price?=?1000;
		}else?if(type?==?"重型卡車"){
			this.loadWeight?=?20;
			this.price?=?2500;
		}	
	}
	//返回載重
	public?int?getWeight(){
		return?loadWeight;
	}
}
//客車類
package?package1;
public?class?Bus?extends?Vehicle{
	private?int?loadNumber;
	public?Bus(String?type){
		this.type=type;
		if(type?==?"小型客車"){
			this.loadNumber?=?5;
			this.price?=?800;
		}else?if(type?==?"大型客車"){
			this.loadNumber?=?60;
			this.price?=?1500;
		}
	}
	//返回載客人數(shù)
	public?int?getNumber(){
		return?loadNumber;
	}
}
//皮卡類
package?package1;
public?class?Pickup?extends?Vehicle{
	private?int?loadWeight;
	private?int?loadNumber;
	public?Pickup(String?type){
		this.loadWeight?=?3;
		this.loadNumber?=?15;
		this.type?=?type;
	}
	//返回載客人數(shù)
	public?int?getNumber(){
		return?loadNumber;
	}
	//返回載重
	public?int?getWeight(){
		return?loadWeight;
	}
}
//訂單類
package?package1;
import?java.util.Scanner;
public?class?Order?{
	int?loadNumber;
	int?loadWeight;
	int?cost;
	Vehicle?[]?data?=?{new?Truck("輕型卡車"),?new?Truck("重型卡車"),
			new?Bus("小型客車"),?new?Bus("大型客車"),new?Pickup("皮卡")};
	public?Order(Scanner?in){
		addVehicle(in);
	}
	//顯示訂單詳情
	void?show(){
		loadNumber=data[2].mount*((Bus)data[2]).getNumber()+
				???data[3].mount*((Bus)data[3]).getNumber()+
				???data[4].mount*((Pickup)data[4]).getNumber();
		loadWeight=data[0].mount*((Truck)data[0]).getWeight()+
				???data[1].mount*((Truck)data[1]).getWeight()+
				???data[4].mount*((Pickup)data[4]).getWeight();
		for(int?i?=0?;i<data.length;i++){
			cost+=data[i].mount*data[i].price;
		}
		System.out.println("--------------賬單詳情------------");
		for(int?i?=0?;i<data.length;i++){
			System.out.println(data[i].type+"??數(shù)量："+data[i].mount+"??單價"+data[i].price);
		}
		System.out.println("總載重："+loadWeight+"??總載人："+loadNumber+"??總價格："+cost);
		System.out.println("--------------------------------");
	}
	//修改訂單
	void?addVehicle(Scanner?in){
		boolean?quit?=?false;
		while(true){
			System.out.println("選擇一種以更改：");
			System.out.println("1.輕型卡車????載重范圍：0~5T????價格：1000元/輛");
			System.out.println("2.重型卡車????載重范圍：5~20T???價格：2500元/輛");
			System.out.println("3.小客車????????載客范圍：0~5人?????????價格：800元/輛");
			System.out.println("4.大客車????????載客范圍：10~60人????價格：1500元/輛");
			System.out.println("5.皮卡????????????載重范圍：0~3T????載客范圍：0~15人??????價格：2000/輛");
			System.out.println("其他數(shù)字鍵退出！");
			int?choose?=?in.nextInt();
			switch(choose){
			
			case?1:
				System.out.println("輸入數(shù)量(正數(shù)增加，負數(shù)減少)：");
				data[0].mount+=in.nextInt();
				break;
			case?2:
				System.out.println("輸入數(shù)量(正數(shù)增加，負數(shù)減少)：");
				data[1].mount+=in.nextInt();
				break;
			case?3:
				System.out.println("輸入數(shù)量(正數(shù)增加，負數(shù)減少)：");
				data[2].mount+=in.nextInt();
				break;
			case?4:
				System.out.println("輸入數(shù)量(正數(shù)增加，負數(shù)減少)：");
				data[3].mount+=in.nextInt();
				break;
			case?5:
				System.out.println("輸入數(shù)量(正數(shù)增加，負數(shù)減少)：");
				data[4].mount+=in.nextInt();
				break;
			default:
				quit?=?true;
				break;
			}
		?/*?for(int?i?=?0;i<data.length;i++){
				if(data[i].mount?<?0)
					data[i].mount?=?0;
			}*/
			if(quit?==?true){
				break;
			}		
		}
	}
}